hexdiff

commit ac5431b14092dfa8dbe2431dbed813804ab3d577
parent 6e3ea85cccec28f645a3678d38d8532e3dedac56
Author: Louis Burda <quent.burda@gmail.com>
Date:   Sun, 29 Jan 2023 01:53:48 +0100

fixup! Initial version

Diffstat:
M
hexdiff.c
 | 
8
++++++--

1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/hexdiff.c b/hexdiff.c
@@ -74,11 +74,15 @@ main(int argc, const char **argv)
 		} else if (!f2.fname) {
 			f2.fname = *arg;
 		} else {
-			fprintf(stderr, "Usage: hexdiff [-c] FILE FILE\n");
-			return 1;
+			break;
 		}
 	}
 
+	if (!f1.fname || !f2.fname || *arg) {
+		fprintf(stderr, "Usage: hexdiff [-c] FILE FILE\n");
+		return 1;
+	}
+
 	f1.file = fopen(f1.fname, "r");
 	if (!f1.file) err(1, "fopen %s", f1.fname);